result robot based laser metal deposition with cad/cam

7776 Annual Report 2015 Annual Report 2015 77

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Fraunhofer Institute for Laser Technology ILT, www.ilt.fraunhofer.de

DQS certified by DIN EN ISO 9001, Reg.-No.: DE-69572-01

Fraunhofer Institute for Laser Technology ILT, www.ilt.fraunhofer.de

DQS certified by DIN EN ISO 9001, Reg.-No.: DE-69572-01

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3 Robot model in »LMDCAM2«.

4 Laser Metal Deposition process

on a demonstrator component.

Result

For the additive manufacturing of demonstrator components

with Laser Metal Deposition, »LMDCAM2« has successfully

been used to generate robot paths based on CAD data. The

demonstrator components are geometrically complex shapes,

which can be produced through different angles and orienta-

tions of the processing optics thanks to the robot’s flexibility.

Applications

Due to its high flexibility, the robot is principally suitable for

all types of repair and manufacturing applications in various

industries (e.g. aviation, turbomachinery, tooling). Thanks to

its greater freedom of movement as compared to Cartesian

systems, it can be particularly interesting for applications

where accessibility to the processing site is severely limited.

The Fraunhofer Innovation Cluster »AdaM« has been funded

by the European Regional Development Fund (ERDF), »Invest-

ment in the Future«.

Contacts

Dipl.-Ing. (FH) Patrick Albus

Telephone +49 241 8906-479

patrick.albus@ilt.fraunhofer.de

Dipl.-Phys. John Flemmer

Telephone +49 241 8906-137

john.flemmer@ilt.fraunhofer.de

Task

As part of the Fraunhofer Innovation Cluster »AdaM« (Adap-

tive Production for Resource Efficiency in Energy and Mobility),

a robot-based plant consisting of a six-axis articulated robot

with a tilt-and-turn module has been constructed and used

to repair and manufacture turbomachinery components. With

it, geometrically complex turbine blades, for example, should

be repaired. Robot paths should be created on the basis of

CAD data from the software developed at Fraunhofer ILT,

»LMDCAM2«.

Method

The robot has been successfully commissioned. Simple

movements can be programmed very quickly by a teach-in

operation via the robot controller. However, if robot paths are

generated based on CAD data, appropriate CAD/CAM soft-

ware must be used. With »LMDCAM2«, both the 3D models

of the components to be repaired or manufactured as well as

the robot model including the definition of the kinematics can

be read and animated graphically. This way, robot paths can

be created according to the respective welding strategy. Preli-

minary robot movements can be simulated on the computer

in order to avoid possible collisions of the robot.

ROBOT BASED LASER METAL DEPOSITION WITH CAD/CAM COUPLING

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